Sanjay,
For me, the similar optical qualities (color saturation & enhanced contrast) of the 10x42 and 12x50 SVs "pop" a little more than the 10x50. It's not necessarily a "bad" feature, and in very strong bright daylight, may be a desirable control of stray reflective light...like putting on good sunglasses to control glare to unprotected eyes. Due to the smaller exit pupils of the 10x42s and 12x50's, "light gathering" is not quite as strong as the extra "brightness" we all see using the 10x50s!
Personally, I find the Darker and Enhanced chromatic saturation and edge contrast of the 10x42s and 12x50s unnatural. I speak of this in the context of a natural view, as without any optical corrections or magnifications (my eyes are 20\13 vision, thanks to cataract surgery). Specifically, I compare my natural FOV eyesight of the scene with the binoculars, looking for inaccuracies in the magnified color fidelity, contrast, light presentation and razor edge sharpness. Yes, colors and possibly contrast seem to be accentuated with the smaller EPs, this being possibly more desirable and useful in very bright and harsh sunlight. My main usages are usually in daylight forested shadow areas, dusk and dawn that the natural brightness, color fidelity and resolution details of the 10x50 make so great, with a scenic view that is as if I were standing there.
The optic appeal of the 12x50 \ 10x42 may be just what you want. When You can make the direct comparisons Yourself, under the same Circumstances, under the same Lighting Conditions, then You will ultimately have the Perfect Answer for YOU!
Ted
